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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12065016 B1

PDFFull Text
Date of Patent:
Aug. 20, 2024

Filed:

Oct. 15, 2019

Heat pump system

Applicant:

Hangzhou Sanhua Research Institute Co., Ltd., Hangzhou, CN;

Inventors:

Junqi Dong, Hangzhou, CN;

Qiaofeng Liu, Hangzhou, CN;

Shiwei Jia, Hangzhou, CN;

Assignee:

HANGZHOU SANHUA RESEARCH INSTITUTE CO., LTD., Hangzhou, CN;

Attorney:

Cheng-Ju Chiang

Primary Examiner:

Larry L Furdge

Assistant Examiner:

Keith Stanley Myers

Int. Cl.
CPC ...
B60H 1/00 (2006.01); B60H 1/22 (2006.01); B60H 1/32 (2006.01); F25B 5/02 (2006.01); F25B 6/04 (2006.01); F25B 13/00 (2006.01); F25B 40/00 (2006.01); F25B 41/20 (2021.01); F25B 41/30 (2021.01); F25B 41/42 (2021.01);
U.S. Cl.
CPC ...
B60H 1/00921 (2013.01); B60H 1/00392 (2013.01); B60H 1/22 (2013.01); B60H 1/3213 (2013.01); F25B 5/02 (2013.01); F25B 6/04 (2013.01); F25B 13/00 (2013.01); F25B 40/00 (2013.01); F25B 41/20 (2021.01); F25B 41/30 (2021.01); F25B 41/42 (2021.01); B60H 2001/00928 (2013.01); B60H 2001/00935 (2013.01); B60H 2001/00957 (2013.01); B60H 2001/3291 (2013.01); F25B 2600/2507 (2013.01); F25B 2600/2513 (2013.01); F25B 2600/2515 (2013.01); F25B 2700/1933 (2013.01); F25B 2700/21151 (2013.01);
Abstract

A heat pump system includes a compressor, a fluid switching device, a first heat exchanger, a second heat exchanger, a third heat exchanger, a fourth heat exchanger, a flow regulating device and a throttle element. The second heat exchanger includes a first heat exchange portion and a second heat exchange portion. An outlet of the first heat exchange portion communicates with the throttle element. An inlet of the first heat exchange portion communicates with at least one of a second port of the third heat exchanger and an outlet of the fourth heat exchanger. An inlet of the second heat exchange portion communicates with the outlet of the first heat exchanger. An outlet of the second heat exchange portion communicates with an inlet of the compressor. In a heating mode, the function of the second heat exchanger is reduced, thereby the heating capacity of the heat pump system is improved.

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